Staple-affixing machine.



v G. F. HULLINGSBz-D. P. MOORE.

STAPLE AFFIXING MACHINE. 7 APPLICATION FILED 001210, 1914.

Patented. Mar. 30, 1915.

5 1miimmm1mm" FFEQE.

GEORGE E. HULIiINGS AND DAVID E. MOORE, O1 -WASHINGTON, DISTRICT OFCOLUMBIA.

STATELE-AFFIXING MACHINE.

Specification of Letters Patent.

latentedhlar. 30, 1915.

Application filed October 10, 1914. Serial No. 366,096.

To aZZ 107mm it may cone-err Be it known that we, Gnpnon F. HULLiNGs andDAVID P. Moons, citizens of the United States, residing at Washington,in the District of Columbia. have invented certain new and usefulimprovements in Staple- Aliixing Machines, of which the following is aspecification.

The present invention relates to improvements in staple allixingmachines.

One object of the present invention, is the provision of a machine ofthis character which will accommodate and operate upon a flat strip ofstaples, the strip being fed intg the magazine of the present machineanrhbelow the plunger, so that upon the driving movement of the plunger,the first staple will be severed and driven, while the second staplewill have the prongs thereof bent in staple form simultaneouslytherewith.

A further object of thep' isent invention, is the provision of a machineofthis character in which the pawls for moving the strip and for holdingit against a retrograde movement are so mounted as to be readilyreleased from the strip to permit of the adjustment of the strip or theremoval thereof from the machine without the necessity of cutting andforming the staples, and thus preventing the clogging of the machine.

A still further object of the present invention is the provision of amachine of this character which is simplified in its construction, theparts being made more durable and such machine being constructed toaccommodate a reel of connected partially formed staples, so that suchpartially formed staples may be carried and readily attached to thepresent machine to be formed, severed and clenched by the plunger andother mechanism thereof.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafter desced and claimed, it being understood that changes in the preciseembodiment of the inkO vention herein disclosed-can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings Figure l is a side elevation partly in section of thepresent machine,

the operating lever being broken away at the top as is also the head ofthe plunger. Fig. Q is a sectional view through the magazine showing thefeeding and retrograde preventing pawls in proper position relatively tothe strip of staples, the feeding pawl being shown in section. Fig. 3 isa section taken on line 33 of Fig. 1.. Figs. 4, 5 and 6 are detail viewsof the staple engaging end of the plunger. Fig. 7 is a. top plan view ofthe machine, the forward portion of the base and magazine being brokenaway as well as the operating lever. Fig. 8 is a top plan view of a reelof the staple strip. Fig. 9 is a perspective view of the feed-in end ofsuch strip. Fig. 10 is a 'section taken on line l0-10 of Fig. 2, suchsection being through the complete magazine.

Referring to the drawings, the numeral 1 designates the supportingmember of the present device, which when properly mounted is supportedupon a tubular pedestal (not shown), so that the rod 23 will be extendedtherethrough and connected to a foot treadle (not shown).

The forward projection 2 of the support 1 constitutes the base andsupport for the anvil 3, which is provided with the clenching recess 4:.Formed integral with and projecting above the base 2,.are the two lugs5, which receive the removable bolt or supporting pin 6 for the bar 7 ofthe magazine 9. The bar 7 is provided as illustrated in Fig. 3, with thetwo parallel grooves 8, which form recesses to receive the prongs of thetormechstaple 47 carried upon the staple strip as illustrated in Figs. 8and 9. These strips of staples are preferably formed so that the mainbody thereof have the prongs i8 in a plane with the body with the spaces49 therebetween, so that when the prongs are bent as will presentlyappear, they will produce the stapleas a7.

Mountedin the free end of the magazine 9 for vertical reciprocatorymovement, is the plunger 10, which'is provided with the guiding ribs 11.and a lower staple cutting" and driving end 12. To the rear of the end12 and formed integral therewith is a. projection 13, which is recessedas at 14 (Fig. 4) to receive the prongs l8 of the staple strip and tobend the same downwardly upon the reduced anvil end 7' of the strip 7.Alsoformed integral upon the, rear face of the anoe of t e foamed staple17 from the strip and at the same time form the next succeeding staple,is a lever 18, the opposite end thereof being pivoted at 19 to thesupporting bracket 20. Two rods 21 are pivotallyconnected to the lever18 intermediate of its ends and are'in turn depended upon opposite sidesof thereel to engage the bar 22, which in turn is connected to the arating rod 23 heretofore described, a helica spring 24 surrounding suchrod and normally exerting a tension to hold the lever 18 elevated withthe magazine 9 tilted to permit the introduction of an article to bestapled uponthe anvil 3.the magazine as shown in Fig. 1 beingillugbrated as resting upogthe anvil just previous to the final depresorgof the plunger 10.

pivoting pin 25,.is. the pawl actuating member 26, the same beingprovided with the end 27 disposed in the path of the lug '15 upon theupI-trbke, to cause the pawl 31 to be fed forwardly to cause the end 33thereof to engage the 'strip ofstaples to move the Mounted within dthemagazine 9 u on thev azine 1s a double-terminal spring, whose ter- .70

minal 40 engages the pawl 31 to hold the end 33 thereof resiliently inengagement with the strip and upon the bar 7 while the terminal 41engages the pawl 36 to hold its end 32 also resiliently: upon the staplestrip and bar 7. It will be noted that the free end of the pawl 36 isprojected between the staple engaging ends 33 of the pawl 31, and that Ithe pawl 31 will have free movement during the actuation thereof byalso, so' that the portion of said pawl 31 above the free end of thepawl 36 will be in the path thereof to be engaged so that the parts mayassume the dotted line position as shown in Fig. 2.

Carried upon the rear end of the bar 7 are the two brackets 43 slottedat 44 to'receive' I the pintle 45 of the reel or spool 45, which:

carries the strip 46 of flat staples. These reels are so constructedthat.f-rom three to 2 where the short completed straight stri )s, 4,

as is now the practice, are used. l y

In machines. using formed staples is only practical to use fromtwenty-five to ninety-two to a strip, those in the ninety-two stripbeing inconvenient due to the tendency of the metal totwist the staples,and at the same time with staples thus formed, an eX- ceedinglycomplicated machine is necessary same beneath the plunger, and furtherwith {to cut, and form the strip staples, the prestheprojection 28,which is disposed in the path of the lug 15, so that upon the lowermostmovement of the plunger 10, the pawl 31 will be retracted or movedtoward the rear of the magazine so that the end 33 thereof will rideupon the strip to engage the next succeeding staple. This member 26 isconnected by a pin 30 to thevpawl 31 so that the desired pivotal actionmay be imparted'to thepawl 31 in its movement to and from the plunger10. .Mounted for oscillation in the magazine 9 is a transverse shaft 34,which. has fixed thereupon within the magazine, thejretrogradepreventing pawl 36, whose teeth 32 are disposedin the path thereof toengage the strip between therespective prongs 18. in the'space 49adjacent the web thereof and thus prevent the withdrawal of the strip,or the retrograde movement thereof during the downward movement of theplunger lOand the backward movement of the pawl ,31. 'Theshaft 34 isshouldered as at 35, to'receive a key (not shown), so ,that the shaftmay be rocked to cause the pawls 36 and 31 to as sume the position asshown in dotted lines Fig. 2, lifting both strip engaging ends 32 entmachine doing away with this and operating upon a strip of herring-bonestaples 9 which are formed flat, and can conveniently h be rolled in acoil upon a reel, thus accommodating in a single reel from three to fivethousand staples.

As before stated in order to facilitate the 113 operation of-the presentmachine, a staple 4'? is formed'upon one end of each reel at the initialstarting thereof, 'so that the same may be fed under the plunger 10,below the driving and cutting 9,Pd.12 thereof, so that 115' the firststaple will nc'it have to be formed when the plunger is driven down,thus presenting at theinitial starting a staple to be severed and drivenandfinally clenched in therecess 4 of. the anvil 3, the next succeed- 31ing staple beingso disposed that the prongs 18 thereof will fit withinthe recess 11 and v thus be: compressed upon the anvil portion 7 'Y ofthe bar 7 to be upon the upward movement of the plunger 10, fedforwardly by 3 the feeding pawl 31 under the elevated plan- V ger, thusassuming the position as sh own in. Fig. 1. By this means. the stripWlll. successively be fed forward so that the present mechanism wilrotate the reel 4'5, according the member 26 and 80 th the distancebetween the staples, at each elevation of the plunger 10.

What is claimed is:

1. A staple aflixing machine-for operation upon strip staples having amagazine, staple cont-rolling means therein, and manually controlledmeans for positioning the staple controlling means so that the strip ofstaples may be withdrawn from the magazine through the feed-in end.

2. A staple afiixing machine for operation upon strip staples having amagazine, a reciprocatory plunger mounted in the magazine, a staplefeeding means mounted in the magazine and operated by the plunger, andmanually operable means for affecting the feeding means to release thestrip of staples to permit their withdrawal through the feedin end ofthe magazine.

3. A staple aiiixing machine for operation upon strip staples having amagazine, a reciprocatory plunger mounted in the magazine, a staplefeeding :pawl mounted in the magazine and operated by the plunger, andmanually operated means for releasing the pawl to permit the stripof,staples to be withdrawn through the feed-in end of the magazine. 7

i. A staple afiixing machine, including a magazine, a plunger mountedtherein for reciprocation, means for feeding a strip of staples topresent one staple at a time to the plunger as the plunger isreciprocated, and manually actuated means for releasing the feedingmeans from the'staples to permit the withdrawal of the staples from themagazine.

5. A staple affixing machine, including a magazine, a reciprocatoryplunger mounted therein, a pawl for feeding a strip of staples operatedby the plunger, and a manually operable retrograde movement preventermounted in the magazine and arranged in such relation to the pawl andstrip of staples, that when said preventer is disengaged fromthestaples, the pawl is also disengaged.

6'. A staple afiixing machine, including a magazine, a reciprocatoryplunger mounted therein, a pawl for feeding a strip of staples operatedby the plunger, a retrograde movement preventing pawl mounted in themagazine for engaging the strip of staples, said latter pawl beingadjacent to the first pawl, and means for actuating the retrogrademovement preventing pawl to release the strip of staples and tosimultaneously release the first pawl from such strip of staples.

7 A staple affixing machine for forming, severing and clenching staplesfrom a strip, including a base, an anvil having a staple clenchingrecess, a magazine mounted upon the base for movement to and from the anvil, a reciprocatory plunger mounted in the magazine and having a staplesevering and driving end and a staple bending and forming member,whereby upon the depression of the plunger, the outer staple is severedfrom the strip while the next succeeding staple is bent and formed,means mounted in the magazine and disposed to cooperate with the plungerfor feeding the staple strip forward upon the upward movement of theplunger, and manually controlled means for positioning said means sothat the strip of staples may be withdrawn from the magazine.

8. A staple affixing machine for forming, severing and clenching staplesfrom a strip, including a base, an anvil having a staple clenchingrecess, a magazine mounted upon the base for movement to and from theanvil, a reciprocatory plunger mounted in the magazine and having astaple severing and driving end and a staple bending and forming member,whereby upon the depres sion of the plunger, the outer staple is severedfrom the strip while the next succeed ing staple is bent and formed, astaple feeding pawl mounted within the magazine, means connected to thepawl and located in the path of the plunger for actuating the said pawlinto the staple engaging and staple feeding position, a retrogrademovement preventing pawl mounted in the magazine and having its free enddisposed adjacent to the feeding pawl and for engagement with the stripof staples, and means for rocking the retrograde movement preventingpawl to elevate its free end and the feeding pawl both out of engagementwith the strip.

In testimony whereof we aiiix our signatures in presence of twowitnesses.

GEORGE F. HULLINGS. DAVID P. MOORE.

Witnesses S. C. HILL, W. B. Arrnnnr.

